Version 3.26.31.7 (merged r21869, r21873)

Do GC if CodeRange fails to allocate a block.

Reduce number of writes to DependentCode array when inserting dependent IC.

BUG=305878
LOG=N
R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/349953002

git-svn-id: https://v8.googlecode.com/svn/branches/3.26@21912 ce2b1a6d-e550-0410-aec6-3dcde31c8c00